Though Yukimura and Himuro went as far as to kiss for the experiment, they were soundly beaten by Chris and Suiu's oxytocin levels in their saliva. Panicked, Yukimura suggests that they conduct control experiments. However, in the midst of the Yukimura/Suiu pairing, Suiu's seductive manner ends up causing Yukimura to ogle her charms. Seeing that, Himuro runs another experiment with Yukimura, but ends up sulking. The two end up having a lover's quarrel. Yukimura's behavior causes Chris to look down at him coldly and say, "As a man, you are a failure."
It is very close to a state of substance 
dependence or manic depression.
.إنها أقرب ما يكون لحالة الإدمان أو الاكتئاب
Das kommt dem Zustand einer Stoffabhängigkeit
oder manischen Depression gleich.
es muy similar a la de los adictos
y maniacodepresivos.
es muy similar a la de los adictos
y maniacodepresivos.
Oui, c’est semblable
à une addiction ou à de la bipolarité !
è molto simile alla dipendenza da sostanze
o alla depressione maniacale.
De fato, é muito próximo ao estado de
dependência química ou transtorno bipolar.
Похоже на наркотическую зависимость
или маниакальную депрессию.